Fig. 4: Experimental demonstration of dispersed wavefront deflection.
From: All-optical active THz metasurfaces for ultrafast polarization switching and dynamic beam splitting

a Microscopic images of a fabricated hybrid metasurface with a zoomed-in image. b Schematic diagram of the hybrid metasurface operating as an active polarizing beam splitter, and c the measured transmission intensity of the co- and cross-polarized components dispersed in angular space in a broadband range. d The measured deflection angle dispersion for the cross-polarized component following the theoretical model